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20789 Hughgrant (2000 SU44)
Classification: Main-belt Asteroid          SPK-ID: 2020789
Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

[ show orbit diagram ]
Orbital Elements at Epoch 2457400.5 (2016-Jan-13.0) TDB
Reference: JPL 17 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2409790486530999 1.0421e-07  
a 2.552567664309259 1.9365e-08 au
q 1.937452336941348 2.7158e-07 au
i 9.765136393811369 8.5243e-06 deg
node 66.44799982049528 2.8947e-05 deg
peri 14.44114422982814 3.1042e-05 deg
M 273.375560569087 1.2084e-05 deg
tp 2457758.928271840280
(2017-Jan-05.42827184)
5.2223e-05 JED
period 1489.581678221554
4.08
1.6951e-05
4.641e-08
d
yr
n .2416785902132015 2.7502e-09 deg/d
Q 3.167682991677169 2.4031e-08 au
  Orbit Determination Parameters
   # obs. used (total)      846  
   data-arc span      23285 days (63.75 yr)  
   first obs. used      1952-01-31  
   last obs. used      2015-11-01  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-BIG16  
   condition code      0  
   fit RMS      .52306  
   data source      ORB  
   producer      Otto Matic  
   solution date      2015-Nov-30 16:35:02  

Additional Information
 Earth MOID = .953971 au 
 Jupiter MOID = 2.12198 au 
 T_jup = 3.378 
[ show covariance matrix ]

Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 13.3 mag n/a MPO302192  

20789 Hughgrant           Discovered 2000 Sept. 28 by C. W. Juels at Fountain Hills.
Hugh M. Grant (b. 1933) is a retired educator and businessman from Vancouver and a member of the Royal Astronomical Society of Canada. He recently completed construction of a roll-off roof observatory at his winter home in Fountain Hills, Arizona.
NOTE: some special characters may not display properly (any characters within {} are an attempt to place the proper accent above a character)
Reference: 20010804/MPCPages.arcLast Updated: 2009-05-11

[ show close-approach data ]
Alternate Designations
 2000 SU44 = 1952 BA2 = 1989 FD1 = 1994 LE7 
Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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